# SDR AALA202312286301

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 27, 2023
- Submitted: December 28, 2023
- Operation: Air carrier
- Aircraft: [N524UW](https://openairdocs.org/aircraft/N524UW), registered now
- Make and model: Airbus A320*
- Aircraft serial: 3977
- Aircraft time: 48,635 hours, 18,269 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71701001
- Condition: Warning Message
- Location: Zone 200 - Fuse
- Stage of operation: IN
- How discovered: C
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202312286301

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DURING PS CHECK, EPSU 14WL FAULTED. MAINTENANCE  REPLACED EPSU 14WL IAW AMM 33-51-38.

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